Weighing apparatus.



No. 888,572. PATENTED MAY 26, 1908.

M. H. AVRAM.

WEIGHING APPARATUS.

\PPLIOATION FILED JULY 18.1907.

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No. 888,572. PATENTED MAY 26, 1908. M. H. AVRAM.

WEIGHINGAPPARATUS.

APPLIOATION FILED JULY 18.1907.

. 2 SHEETS-SHEET 2.

RP N W/% A UNITED STATES common receptacle in whic PATENT OFFICE.

MOlS KIAVRAM, OF NEW YORK, N. Y., ASSIGNOR TO AVRAM-LEET ENGINEERING COMPANY,

OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

WEIGHING APPARATUS.

Patentedliay 2c, 1908.

Application filed July 18, 1907. Serial No. 384,344.

To all whom it may concern:

Be it known that I, Mois I-I. AVRAM, a citizen of the United States, residing at New York, county of New York, State of New York, have invented certain new and useful producea novel and simple apparatus for V weighing and delivering-substances in a finely divided form and is particularly adapted for weighing such substances in powdered form.

It further has for its object to produce an apparatus for weighing different kinds of such substances and dischar ing them into a they may be mixed to ether.

The fo owing isa description of an embodiment of my invention, reference being had to the accompanying drawings, in which Figure 1 represents a side elevation-showing three weighing devices; Fig. 2 is a cross section throu bone .of said devices showing the resetting lever; Fi 3 is a cross section through another of sai weighing devices of a different size; and Fi 4 is a cross section through a third weighmg deviceof a still .difl erent size.

Referring more particularl ings, A is a shaft common to all in devices. I

B B are three weighing receptacles having respectively projections C C C to the drawof said weighwhich are loosely j ournaled 'uponthe shaft A so as to have a movementabout its axis.

These extensions haveprojections D D D 'WhlGll are provided with slots E E E? 40 levers F F F, sai

nuts so that the position of the bell-cranks relatively to the rojections D D D can be through which pass ins carried by bell crank d pins provided with set which, when the bottoms are depressed and the shaft is rotated by the lever K, also rigidly mounted on theshaft A ,'engage projections h h h on the bottoms and raise the bottoms until they are engaged by the latches. Abutments L L L are rovided, which, when the receptacles are epressed, engage with extensions 'i i i and withdraw the latches from the bottoms H H H so as to permit them to fall and discharge the contents of their respective receptacles. The receptacles are provided withtops M M M? having extensions M M M?.- The to s are rovided with back stops N N N an with orward stops .0 O O which engage. the front and back sides of chutes P P l? to which the materials to be weighed are supplied. The surfaces between the stops are concentric with the axis of the shaft A andare provided with openings T T T which,

when the weighing receptacles are in elevated position, register with the chutes P P P respectively. The extensions between these openings and the back stops 0 Q 0 when the weighing receptacles are in depressed osition, close the chutes. The shaft and liever K, when released, are retracted by the spring Q.

R is a mixing receptacle into which the several weighing receptacles discharge.

S S S? are bins containing the separate materials to be weighed.

The 0 eration of these devices is as follows: When the weighing receptacles have discharged their contents, they are in depiressed condition, and the hinged bottoms H H? are released'by their detents or latches and are therefore 0 en. Upon the depression of the lever K t e shaft A, to-

getherwith the levers J J J are revolved.

The levers J J 2 J 3 engage with the projections h h k and force the b'ottomsu into engag ment with their respective late es I I I A furthermovement of the lever K moves the several rece tacles upward until the 0 enings T T '1 P When the, ever K is released, the several receptacles with their bottoms thus closed, are held in this position by their respective counter-weights G G G. The materials to be weighed thereupon flow from their re 'sterwith the chutes, P

respective bins to the respective weighing rece tacles and the flow-continues until the weig t of the material to be Weighed in the receptacles overcomes the counter-balanceof t e respective weights G, G -G When the counter-balance ofthe several receptacles is thus overcome, the receptacles revolve about the shaft A until the openings T T"-T no longer register with the chute and until B. overcomes its counter-balance G is independent of the time when the. weighing receptacle B or B overcomes its counter-balance. Each of the several receptacles cuts off its supply and is discharged as soon as the proper amount of material has entered it and the amount of material which is necessary to overcome the counter-balance is determined by the position of the ins in the slots E E E or the distance of t e counter-weights G Gr G3 from the center of the shaft A; The mixer is any suitable forn'i.

My invention ermits of various modifications but the em odiment above described is the one preferred by me,

. What I claim is:

1. The combination of a supply chute whose discharge end is concentric with an axis, and a receptacle mounted to revolve about said axis and having a surface adjacent to the discharge end of said chute and concentric withsaid axis and also an opening through a portion of said surface registering withthe dischar e end of said chute when the receptacle is 1n elevated osition with. a lever rigidly connected to sai receptacle and an adjustable counterweight on said lever.

2. The combination of a supply chute whose discharge end is concentric with an axis, a receptacle mounted to revolve about said axis and having a surface adjacent to j the discharge end of said chute, and concentricwith said axis and also an opening through a portion of said surface registering with the discharge end of said chute when the rece tacle is in elevated position, said receptacl having a bottom hinged thereto, a latch for holding the same closed, and an abutment located in the path of said latch so as to be engaged by the same on the downward movement ofsaid receptacle.

3. The combination of a supply Y chute whose discharge 'end is concentric with an axis, a receptacle mounted to revolve about said axis and having a surface adjacent to the discharge end of saidchute, and concentric with said axis and also an opening through a ortion of said surface registering with the ischarge end of said chute when the receptacle is in elevated position, said receptacle having a bottom hinged thereto, a

latch for holding the same closed, an abutment located in the path of said latch so as to be engaged by the same on the downward movement of said receptacle, and a lever revoluble around said axis and adapted to engage said bottom and force it into engagement with said latch and to return said receptacle to elevated position.

4, The combination of a supply chute whose discharge end is concentric with an axis, a receptacle mounted to revolve about said axis and having a surface adjacent to the discharge end of said chute and concentric with said axis and also an opening through a ortion of said surface registering with the cischarge end of said chute ;when

the receptacle is in elevated position, said 'receptacle having a bottom hlnged thereto, a latch for holding the same closed, an abutment located in the path of said latch so as to be engaged by the same on the downward movement of said receptacle, and an adjustable counter-weight for said receptacle.

5. The combination of a shaft, a plurality of counter-balanced receptacles j ournaled thereon and free to move relatively thereto,

means for automatically openin each of said common axis, so as'to be free to ,move relatively thereto, said receptacles having pivoted bottoms and latches to hold said bottoms closed, abutments for engaging said latches and releasing said bottoms when said receptacles are depressed, and a common means for bringing said bottoms into engagement with said latches and restoring said receptacles to receiving position.

7. The combination of a supply chute whose discharge end is concentric with an axis, a receptacle mounted to, revolve about said 'axis and having a surface adjacent to the discharge end of said chute and concentrio with said axis and also an opening through a portion of said surface registering with the dischar e end of said chute when the receptacle is in elevated positionysaid'receptacle havin a bottom hinged thereto, a latch for ho ding thesame closed, and an abutment located in the path of said latch so as to be engaged by the same on the downward movement of said receptacle, and stops for limiting the movements of said receptacles.

MOIS 'H. AVRAM.

Witnesses:

. COLLINS P. BLIss,

-J. W. PERRY, 

